<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>Genetic Query Optimizer</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REV="MADE"
HREF="mailto:pgsql-docs@postgresql.org"><LINK
REL="HOME"
TITLE="PostgreSQL 9.1.2 Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="Internals"
HREF="internals.html"><LINK
REL="PREVIOUS"
TITLE="Foreign Data Wrapper Callback Routines"
HREF="fdw-callbacks.html"><LINK
REL="NEXT"
TITLE="Query Handling as a Complex Optimization Problem"
HREF="geqo-intro.html"><LINK
REL="STYLESHEET"
TYPE="text/css"
HREF="stylesheet.css"><META
HTTP-EQUIV="Content-Type"
CONTENT="text/html; charset=ISO-8859-1"><META
NAME="creation"
CONTENT="2011-12-01T22:07:59"></HEAD
><BODY
CLASS="CHAPTER"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="5"
ALIGN="center"
VALIGN="bottom"
><A
HREF="index.html"
>PostgreSQL 9.1.2 Documentation</A
></TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
TITLE="Foreign Data Wrapper Callback Routines"
HREF="fdw-callbacks.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
HREF="internals.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="60%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="20%"
ALIGN="right"
VALIGN="top"
><A
TITLE="Query Handling as a Complex Optimization Problem"
HREF="geqo-intro.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="CHAPTER"
><H1
><A
NAME="GEQO"
></A
>Chapter 51. Genetic Query Optimizer</H1
><DIV
CLASS="TOC"
><DL
><DT
><B
>Table of Contents</B
></DT
><DT
>51.1. <A
HREF="geqo-intro.html"
>Query Handling as a Complex Optimization Problem</A
></DT
><DT
>51.2. <A
HREF="geqo-intro2.html"
>Genetic Algorithms</A
></DT
><DT
>51.3. <A
HREF="geqo-pg-intro.html"
>Genetic Query Optimization (<ACRONYM
CLASS="ACRONYM"
>GEQO</ACRONYM
>) in PostgreSQL</A
></DT
><DD
><DL
><DT
>51.3.1. <A
HREF="geqo-pg-intro.html#AEN93796"
>Generating Possible Plans with <ACRONYM
CLASS="ACRONYM"
>GEQO</ACRONYM
></A
></DT
><DT
>51.3.2. <A
HREF="geqo-pg-intro.html#GEQO-FUTURE"
>Future Implementation Tasks for
    <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> <ACRONYM
CLASS="ACRONYM"
>GEQO</ACRONYM
></A
></DT
></DL
></DD
><DT
>51.4. <A
HREF="geqo-biblio.html"
>Further Reading</A
></DT
></DL
></DIV
><P
>   </P><DIV
CLASS="NOTE"
><BLOCKQUOTE
CLASS="NOTE"
><P
><B
>Author: </B
>     Written by Martin Utesch (<CODE
CLASS="EMAIL"
>&#60;<A
HREF="mailto:utesch@aut.tu-freiberg.de"
>utesch@aut.tu-freiberg.de</A
>&#62;</CODE
>)
     for the Institute of Automatic Control at the University of Mining and Technology in Freiberg, Germany.
    </P
></BLOCKQUOTE
></DIV
><P>
  </P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="fdw-callbacks.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="geqo-intro.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Foreign Data Wrapper Callback Routines</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="internals.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Query Handling as a Complex Optimization Problem</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>